text: from .user import User
  # from .meta import Base
  # from .user import User
  # from .user_role import UserRole
  # from .role import Role
  
  # from sqlalchemy.ext.declarative import declarative_base
  # from sqlalchemy.orm import scoped_session, sessionmaker
  #
  # DBSession = scoped_session(sessionmaker())
  # Base = declarative_base()
  #
  #
  # def initialize_sql(engine):
  #     DBSession.configure(bind=engine)
  #     Base.metadata.bind = engine
  #     Base.metadata.create_all(engine)
  